My opinion, Ron:
You're going from (nom.) 1.125 to 1.140, taking off 0.015 on the diameter, which (ideally) is 0.0075 from each wall. Those cups in my kit didn't appear to be any "precision" injection molding. It isn't like they are rings in an engine cylinder- these are just plastic cups that have quite a bit of conformance.
I did my hone job with a spring-loaded hone and an electric hand-drill. I made sure to run it well past the working length of the cylinder, with (IIRC) brake fluid as the lube. I didn't measure before or after so I have no idea what kind of concentricity/perpendicularity I have. I figure that is the job of the cups.
No leakage 2 years afterward.
...just watch: I'll come home to a pool of brake fluid tonight.
Bill
